The chief medical officer of the NFL defended the way the Indianapolis Colts treated Jacoby Brissett.

Brissett was placed into the NFL's concussion protocol when he reported symptoms after the game.

"All of our protocols were followed," Dr. Allen Sills said Tuesday on a league conference call. Sills added that Brissett "had no symptoms" and that there were "no findings" during the game to prevent him from returning to play.

Brissett passed three separate concussion tests, two during the game and one immediately afterward. He said it is not unusual for concussion symptoms to evolve and emerge in a delayed fashion.

Brissett reported the onset of what Sills said were "mild" symptoms about 20 or 30 minutes after the game.

"Out of an abundance of caution," he was placed in the protocol, Sills said.

Andrew Luck is in Europe seeking treatment on his surgically repaired right shoulder.

Luck has had persistent soreness in his right shoulder and was placed on injured reserve on Nov. 3rd.

Luck underwent surgery in January and practiced Oct. 4 for the first of two times since December.

Luck is in the rehab process of trying to get his shoulder balanced.

Luck originally injured his shoulder during Week 3 of the 2015 season.

According to some reports, Andrew Luck's career is in jeopardy due to shoulder issues.

Indianapolis Colts general manager Chris Ballard was asked whether it is possible Luck will never play again.

"No," said Ballard. "Not right now. We're not getting that from anybody. We're not getting 'career-ending' from anybody."

The Indianapolis Colts released Vontae Davis after it was announced he would undergo season-ending groin surgery.

Davis decided to move forward with the surgery after seeking a second opinion.

Davis said he felt disrespected when the Colts left him behind for last weekend's game at Houston.

"I had a groin tear that I dealt with," Davis said. "I got different opinions on it. One doctor said I should have had surgery, other doctor told me to let it heal. I took the let-it-heal approach. I came back, and probably came back a little too early, and in the process I probably hurt my teammates."

When asked why Pagano said it was a non-injury situation, Davis said, "I can't really control what Coach P said."

The Indianapolis Colts have legitimate concerns that Andrew Luck may never return to the NFL due to complications from his injured shoulder.

Luck has been ruled out for the rest of the 2017 season.

Luck has $84 million remaining on his contract over the next four seasons.

Luck initially suffered a shoulder injury in 2015 and tried to play through it.

Andrew Luck has already received $57 million under his second contract with the Indianapolis Colts.

Luck has another $30 million in guaranteed payments for injury with $18 million due in 2018 and another $12 million in March of 2019.

The Colts can only avoid that obligation by trading Luck.

A new team could get him for what amounts to a four-year, $82 million contract with $30 million guaranteed and no signing bonus.

Luck has been ruled out for the season with a shoulder injury. Luck played seven games in 2015 and 15 games in 2016.

The Indianapolis Colts have placed Andrew Luck on injured reserve, which will rule him out for the remainder of the season.

Luck underwent offseason shoulder surgery and has been unable to get well enough to return. Luck will shut down his throwing and continue his rehab.

Luck said he's "very optimistic" about his future despite being unable to recover in time for the 2017 season.

“I wish I was better and 100 percent this season, but that’s not the case," Luck said. "I know I’ll be better from this. I know I’ll be a better quarterback, teammate, person and player from this, and I’m excited for the future."